I've been thinking along those same lines but I haven't done it yet.
lt1 fuel pump/line question
Thread Starter
Burning Brakes
Joined: Mar 2006
Posts: 1,036
Likes: 2
From: Huntingburg Indiana
lt1 fuel pump/line question
I am putting a holley on my 71 small block. I am trying to get a pump/line assembly for it. The lt1 pumps in the catalogs appear to have no return line. The line kit consists of 3 lines and a y block. How would this work without a return? Also, where is the filter on an lt1? I am just trying to find out what parts to order. I have a holley 4160 model 3310 carb on a weiand action plus intake. Thanks a lot.
Tech Contributor
Joined: Aug 1999
Posts: 14,377
Likes: 6,377
From: At my Bar drinking and wrenching in Lafayette Colorado
The LT1 didn't use a return line. The inlet line assembly was a steel line system with a Weatherhead Y Block to split the line from primary to secondary float bowls, and consists of 3 line sections. The filters were cintered bronze fiters installed in the float bowl inlets.
Thread Starter
Burning Brakes
Joined: Mar 2006
Posts: 1,036
Likes: 2
From: Huntingburg Indiana
Thanks for the reply. Why didn't they need a return? It seems like the pump would work harder than it needed to. I have the regular 350 pump with a return on my 71. Will this work with the y block setup? I just want to make sure I don't need to change anything else. Thanks again.
Racer
Joined: Aug 2005
Posts: 431
Likes: 0
From: Oita, Japan
I have a similar setup as yours. The lt1 fuel line from pump to y block will not connect to the original fuel pump without mods. I was thinking about putting the lt1 fuel pump on it and blocking off the return line but everything I've read from lars is that the return line is a really good thing to have.
Thread Starter
Burning Brakes
Joined: Mar 2006
Posts: 1,036
Likes: 2
From: Huntingburg Indiana
What I had in mind was to use the y block with the 2 lines going to each bowl, and use part of the long lt1 line. Then I was going to run part of the standard 350 line and connect it to the lt1 line with a filter. It will take a little modifying, but I will get it to look nice.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo